package oo;

import oo.extendss.Singer;
import oo.fengzhuang.Person;

public class ClientOO {
    public static void main(String[] args) {
        Singer singer = new Singer();
        singer.work();

        singer.addFrinedMap("a");
        Person a = singer.getFriend("a");
        System.out.println("a = " + a);

        int b;
        b = 1;
        System.out.println("b = " + b);
    }
}
